Can lacquering or coating machine.



G. S. BUGKLIN.

GAN LAGQUERING 0R coATING MACHINE.

APPLICATION FILED APR.15, 1908.

Patented Aug. 31, 1909.

5 SHBETS-SHBBT 2.

iwf/aj G. S. BUCKLIN. GAN LACQUERING 0R coATING MACHINE.

APPLIGATION FILED APB.. 15, 1908.

Patented Aug.31.1909.

5 SHEETS-SHEET 3.

s G. s. BUGKLIN. GAN 'JAGQUERING 0R COATING MACHINE.

APPLICATION FILED APR.15, 1908. f 932,678. Patented Aug. 31, 1909.

. 5 SHEETS-SHEET 4.

l0 m 2 Cv l G. S. BUGKLIN.

GAN LACQUERINGy 0R COATING MACHINE.

' H/MM., ,LMa @MCM UNITED STATES PATENT onirica cuantas s. Buc

' cui reconnaitre on con'rnm umm.

u Y Specification ot Patent. j Pgtented-Aug, 31, 1909.

appucaabnniedapriii5, 190s. serial No. 427,105.

To all whom it may concern:

Be it known that I, CHARLES S. BUGKLIN,

a citizen of the United States, residing in Baltimore, in the State ofMaryland,'have invented' anew and useful vImprovement in Gan Lacqueringor Coating Machines, of

which the following is a specification.

My invention relates to'improvements in machines `for lacquering orapplying tol the interior surface of sheetmetal preserving cans aprotective coating.

The object ofl my invention is to an automatic machinel by means ofwhich sheet metal preservingcans may be rapidly e and cheaply'lacqueredor lined on the inside -with apreservative coating.

My invention yconsists primarily in the combination `with a sprayingdevice, of.

means for rotating the cans and bringing them successively intooperative relation with the spraying device inside the can, a

feed device for thecans and a can drying mechanism and means fortransferring or conveying the freshly coated cans from the coatingmechanism to the drying device and keeping them under rotation whilebeing so transferred or conveyed andwhile moving through the dryingdevice so that the lac.-l quer .or coating will remain evenlydistributed-over the entire interior surface vof the canl until it isdried and rendered hard and Ii-rmly adherent.

" longitudinal section of the spraying device, 'on the broken line 5.--5of Fig. 6. Fig. 6

My invention iirther consists in the novel construction of parts anddevices and in the novel combinationsof parts and devices.V

herein shown and described, and more particularly specified in theclaims.

In the accompanying-drawing forming a part of this specification, Figure1 is a plan view of a can lacquering or coating machine embodying myinvention, a-portion of the drying `chamber being broken away, Fig. 2 isa side elevation. Fig. 3 is an end .elevation. Fig. 4 is an enlargeddetail plan view of the spraying device. Fig. 5 is a detail is a crosssectionof the spraying device on line 6 6 of Fig. 5.v Fig. 7 is a detailelevation, partly in vertical section, showing the can feed device andother parts. Fig. 8 is,

a detail elevation, partly in vertical section on line 8--8 of F ig. 3.Fig. 9. is a de tail section on line 9-9 of Fig. 3. Fig. '.10 1s aprovide L Vertical longitudinal section on the broken line 10f10 of Fg-7.

.rotating and supporting the cans about th'ej ,Spray head conjunction-withthe opposing anti-,friction rollers 'f on the opposing orstationary head F1; v

` G is an ejector for the freshly coated or sprayed pans, H a dryingchamber, K an inclinedvrun-way for transferring or conveying the cans bya rolling movement from the coating mechanism to the drying chamber andM the device for` automatically regulat- 4ing and controlling the amountof liquid Alacquer or coating material sprayed upon the interiorlsur-'face of each can, N a supply tank for the liquid lacquer orcoating material and P a pump for conveying the surplus lacquer orcoating liquid from the overiiow chamber of the spray head back to the.Supply tank.

In the drawing, I have shown the preferred construction of each of thearts or devices formingpart Aof the machine embodying my invention.

The spray head B consists essentially of a liquid chamber 1;,'an airchamber b1 and a series of vertically disposed liquid nozzles or nipplesb2 and a 'corresponding series of horizontally disposed and divergentair-blast nozzles 4b3, the liquid nozzles being preferably arranged inacurved row about as illus- .tra-,ted in the drawing. The liquid chamberb has an overflow partition b4 so that the liquid lacquer` or coatingmaterial may be um, or saumons, ummm, assicizon 'ro enmarcan cancoureur, or New ironic, N. Y., A conroaa'non or itiiw maar.

maintained at a constant level in respect to l the lower lends of theliquid nozzles b2. The lower ends of the liquid nozzles are adjusted orarranged so that they project a. little below the level of the lacqueror coating liquid iii the liquid chamber b, and they are preferl ably soarranged, sis-illustrated in Fig. 5, that the liquid nozzles b-f at themiddle portion of the series do not project quite so deep into theliquid as those at the end portions .of the scrles.- The liquid' chamberof the spray head is preferably formed by a semif cylindric casing binto which the liquid supply pipe b leads and which is furnished with anoverflow pipe or passage b1 leading fromA the overflow chamber 58.

The air chamber b1 of the spray head preferably consists of a flat orrectangular casing in cross section, having a curved nozzle face b9 inwhich the air nozzles b3 are rigidly secured, the air chamber casingbeing itself removably secured by an angle clamp b1 to the liquid nozzleholder or plate 511 which is removably secured to the upwardly opensection of the semi-cylindric liquid chamber casing b5. The nozzleholder 7111 is fur nished with a guide lip Z112 at its end, which 'ts ina suitable socket 513 in the casing b5 of the liquid chamber. The holder511 is also provided at its outer end with a spring clamp 511 having ahole 515 engaging a pin or projection b1 on the end of the casing b5 tofurther lock the liquid. nozzle holder in place on the casing b5. y 1

The air chamber b1 of the spray head is connectedpreferably by aflexible air pipe 'Z211 with a suitable compressed air supply.

The main casing b5 is preferably soldered or` otherwise secured to anupright bracket or plate B1 which is removably secured to the stationaryframe of the machine and which also receives and supports the outer endsof the can guide rods orsupports E E. The liquid lacquer or coatingmaterial overflowing from the liquid chamber b of-the spray head 'intothe overflow compartment bs is returned to the supply tank N through thereturn pipes n by means of the pump P.

The can feed runway C is furnished preferably with side rails or guidesC1 and inclined at such angle that the cans will roll automaticallyalong the same by their own gravity.

The can feed device or feederD preferably consists of a vibrating armpivoted to the them.

main frame at d, and'having a pair of stop arms or fingers ld1 d2, whichalternately project up into the cam runway sufficiently to arrest thedownward rolling movement of the cans, the feed arms being spaced apartsuii-A cient-lv to receive only a single can between The feeder D isautomatically operated at intervals as required, by means of a link d3and cam lever d'1 operated by a suitable cam d on the cam shaft R.

The can way or supporting device E preferably consists of a pairv ofrods or guides extending horizontally and arranged parallel to eachother at a suitable distance apart to support the can 'X between themwhile permitting it to be readily pushed along these ide rods onto orinto a position surroundmg the spray head B.

The means or device F for pushing the can-X onto the spray head and forrotating it, preferably consists of'a rotating and reciprocating canholder chuck or disk, preferably of-rubber or other yielding materialadapted to exert a gripping action upon the end or head m of the can X.It is secured to or carried by a metal head f1 on the rotating andreciprocating shaft f2 which is furnished with a pulley' f3 for rotatingit and connected with the shaft by a spline f4 so that the shaftmayreciprocate through the pulley, and provided with a grooved collar f5for reciprocating it as required by engagement with the fork lever fwhich is operated by a cam f7 on the cam shaft R. The cam f7 preferablyoperates to reciprocate or move the lever f in the direction to retractthe can transferring and rotating device F and its shaft f2 and the sameare preferably moved in the opposite direction by means of a weight f8and a iiexible connection f which passes over a pulley f1 and isconnected to the head F2. To permit the can to freely rotate underaction of the rotating can holder chuck F, the opposing stationary chuckF1 is furnished with a plurality of conical anti-friction rollers f andwhich engage the annular shoulder w1 of the can at the opposite end'fromthe rotating holder or chuck F. As the conical rollersf onlytangentially engage the extreme annular shoulder or corner of the can,they will not smear or soil the end of the can to any appreciable extentwith the sticky lacquer or coating material, although these can engagingconical rollers f may themselves become more or less coated with thelacquer by reason of their proximity to the spray head B.

After the spraying operation has been completed upon the can, the can iswithdrawn from its position surrounding the spray head (so that it maybe ejected or discharged from the can supports E) by means of areciprocating head or slide F2, which preferably slides upon the cansupporting rods E, and which engages the end of the can below the sprayhead B. This head or slide F2 is preferably reciprocated as required bya connecting link f11 extending between said slide F2 and the lever f bywhich the rotating can holder or chuck F is reciprocated.

The can ejector G which serves to eject or discharge the freshly sprayedor coated canfromvthe can su ports E and rotating can holderchuck F ater said chuck is withdrawn, preferably consists of a curved arm orlever pivotally connected to the frame 'of the machine at g, and havinga forked or widened end g1 for engagement with the can, and which lisoperated intermittentlyr or at intervals as required, by means of a linkg1, and a cam lever g operated by a cam g* on the cam shaft R.'

The drying chamber H preferably consists of a 4closed chamber preferablyfurnished with gas burners or other heaters h,

and a track or runway h1 along which the cans may be rolled continuouslyby means of an. endless conveyer k2, preferably a chain, the lower loopofv which rests upon the cans. The can rotating chain or conveyer h2 isoperated byl pulleys It, the shaft i* of one of which is furnished witha gear 71,5 which meshes with a gear!h1on`the shaft for operating itla7,which has a pulley las through a suitable 'driving The freshly coatedcans X, after being operated upon by the spray head B and ejected fromthey can supporting rods or guides E E, are conveyed by a rollingmovement into-the drier H, preferably by a connecting inclined runway K.v

The device M for automatically regulating and controlling the amountl of-liquid lacquer or coating material sprayed upon the interior surface ofeach can-in turnl as it is brought into operative relatioii .with thespray head and -rotated in respect thereto, preferably consists of aAvalve in the combelt 71.9.

pressed air supply pi e, which is momen.

tarily and automatica ly opened andclosed so that the blast ofcompressed air is projected through the`air nozzle b of the spray headforfvjust the required short period of time necessary for properlysprayingthe in terior surface `of each can as it is rotated incoperative relation with the spray head.

This controlling device or valve M is preferably automatically operatedas required by means of a lever m, carrying 'a roller m1 adapted to beengaged by the .can when it is pushed into operative relation with thespray@ head by. the rotatin and reciprocating can transferring devicepivoted to the frame at m2 and is connected the required amount vof by alink 'nea with a movable link or arm m4 having a notch m5 adapted toengage a pin m on the valve operating lever or arm m7 .so that when midcam operated link or arm mi* is moved by said can operated lever m intoposition for the notch m to engage the pin of the valve operating arm orlever, the cam m8 on the camshaft R,"through a lever m connected withsaid link or arm m, will automatically operate or open and close the airvalve M at the intervals required to spray upon the interior surface ofveuch can just material. y f

The piston p of the pump- Pis preferably operatedl byaneccentric- 1 onthe shaft p2 which has a gear ,p-"m es in on the shaft- R, the eccentricing connected with the pump pistonhy a link p4.

The su -ply tank N for' the liquid lacquer is preferahlyfrfur hed withan agitator .orf dasher T which is' operated by. a connection. T1 fiomthe p of the pump P.

I clai'mz- 1. ,In a machine .forlacquering or coating the' interior'surfaces (if.r cans,` the; combinafreshly sprayed cans directly pass,substanand which lever m is can rotating mechanism,

lacquer or coating with a gear r' .at the end -of t Vtion with a sprayhead, of a can feed rundrier into and through `which t-he freshly.

I passing through the drier,

sprayed cans directly pass, substantially-as.

specified.'

3. In a can coatin the-combination wit of a spraying device,

or lacquering machine, a' can rotating device, a can feed device, a

drier into and through which the freshly f sprayed cans directlypass,and means for rolling the cans to the drier, substantially asspecified. i

4. In a can coating or lacquering machine, the combination with a canrotatin device, of a -spraying device, a can feed evice, a drier -intoand through which the freshly sprayed cans directly pass, means forrolling and means for rolling the cans tothe drier, the cans throughlthe drier,

substantially 'as specified..

5. A can lining machine comprising 4in combination means for rotatingthe cans, means for feedin the cans-one by one to the can rotating mecanism, a s rayingldevice, means 'for intermittently `anV automaticallycontrolling the operation of the s raying device, anda drier into andthroug which the tially as `specified.

can lining 'machine comprising" in combination means for rotating thecans', means for feeding the cans one by one to the means forintermittently controlling the operation of the spraying device, adrier, and 'means for rotating the cans-while passing through the drier,substantially as specified.

` A can lining machine comprising in combination means for rotating thecans, means for feeding the cans one by one to the can. rotatingmechanism, a spraying de and automatically ical vice4 means forintermittently and automaty controlling the operation of thespray- .ingdevice, adrier, means. for rotatingLthe cans while passingthrough thedrier, and means for rotating the cans as they are being transferredfrom the s ray-ing mechanisin'to the drier, substantially as-specied.

. 8. The combination with a can rotatin mechanism having a stationiary,head wit anti-friction rollers ada ted to-'tangentially enga-ge theannular shou der specified.` 'v y 9. The combination with a spray head,of acan rotating mechanisifn having astation- '10.5' a'spraying device,

aspray head, of I e can, substantiallyl las l ary head withanti-friction rollers adapted to tangentially engage the annularshoulder atthe end of the can, and-a reciprocating and rotating canholder chuck engaging the opposite end of the can, substantially asspecified.

10. In a can coating machine, the combination with a spray head, `of arotating and reciprocating can holder chuck, and an opposing chuck orhead having anti-friction conical rollers adapted to engage the annularshoulder of the can, substantially as specified.

' 11. In a can coating machine, the'combination with a spray head andmeans for rotating the can in relation to the spray head, of an airsupply valve for` the spray head and a movable device adapted to be en-'aged by the can while it is eing rotated or controlling or 4setting inoperation said air-blast valve, substantially as specified.

12. In a can .coating machine, the combination with a spray head andmeans for rotating the can in relation to 4the spray head, of an airsupply valve forthe spray head and a movable device adapted to beengaged by the can while itis being rotated for controlling and settingin operation said air-blast valve, said movable device carrying ananti-friction roller'for direct engagement with the rotating can,substantially as specified. i

13. In a can coating machine, the combination with a spraying device,and means forl rotating the can, and a device for controlling thecompressed air lsupply of the spraying device and-means engaged by therotating can for actuatin said controlling device, said spraying devicebeing adapted .to enter the can vandproje'ct the, coating l against theinterior surfaces of the .rotating can, substantially" as specified.

15. In a canI coating machine, the comm vbination with a lsprayingdevice andcan rotating means, of an air valve, valve operating mechanismand a. movable device engaged by the can to be sprayed for setting saidvalve operatingv mechanism 1n action and can feed mechanism, saidsprayingde-A vice being adapted to enter the can and project thecoatingliquid against the interior surfaces of the rotating can,substantially as specified.

16. Iii a can coating machine, 'the combination with a spraying deviceand can rotating means, of an air valve, valve operating mechanism, amovable device engaged by the lcan to be sprayed for setting said valveoperating mechanism in action, can feed 'mechanism and a can ejector,said spraying device being adapted to enter the can. and project thecoating liquid against the interior 'surfaces of the rotating can,substantially' as specified.

17. In a can coating machine, the coinbination with a spraying deviceand can rotating means, of an air valve, valve operating" mechanism, amovable device engaged by the can to be sprayed for setting said valveoperating mechanism in action, can feedA mechanism and a can dischargerunway, said spraying device being adapted to enter the can and projectthe coating liquid against the interior surfaces of the rotating can,substantially as specified.

18. In a can coating machine, the combination with a spraying device andcan rotating means, of an air valve, valve operating mechanism, amovable device engaged bythe can to be sprayed for setting said valveoperating mechanism in action, can feed mechanism, a can dischargerunway and a dryingchamber having a can runway extending through it,substantially as specified.

19. vIn a can coating machine, the combination with a spraying deviceand can rotating means, of an air valve valve operating mechanism, amovable evice engaged by the can to be sprayed for setting said valveoperating mechanism in action, can feed mechanism, a can dischargerunway, a drying chamber having a can runway extending through it and anendless conveyer for rolling the cans through the drying chamber,substantially as specified.

20. In a can coating machine, a spraying device comprising a liquidchamber casing having an overflow artition, an air chamber. casing, aseries oi)- upright liquid nozzles arranged in a curved row, a series ofd1- -vergent air nozzles, and a holder for said liquid nozzles removablysecured to said liquid chamber casing to facilitate their removal for,cleaning or repairs and replacenfit and adjustment, substantially asspeci- 21. In a can coating machine, a spraying device -comprising aliquid chamber casing device comprising a liquid chamber casing havinglan overflow partition, an air chamfber casing, a series of uprightliquid nozzles aeae'rsA arranged in a curved row, a series of diver-.gent air nozzles, and a holder for said liquid nozzles removablysecured to said liquid chamber casing, said air chamber casing beingremovably secured to saidliquid chamber casing, substantially asspecified.

A23. In a can coating machine, a spraying -device comprising a liquidchamber casing having an overflow partition, an air chamber casing aseries of upright liquid nozzles arranged 1n a curved row, a series of divergent air nozzles, and a holder for said liquid nozzles removablysecured to said liquid ber casing, a series of upright liquidnozzlesarranged in a curved royv, a series of divergent air nozzles, anda holder for said liquid nozzles removably secured to said liquidchamber casing, said seriesof upright liquid nozzles having their ylowerends projecting I deeper into the liquidv chamber at the. end

.having an overflow portions of the series than at the middle portionthereof, substantially as specified.

25. In a can coatin machine, a spraying device` comprising a iquidchamber casing having an overflow partition, an air chamber casing, aseries ofupright liquid nozzles arranged in a curved row, a series ofdivergent nozzles, and a" holder for saidliquid nozzles removablysecured to said liquid chamber casing, in combination with a liquidsupply pipe and return pipe, a liquid Vsupply tank and a pump forreturning the overfiow liquid to the supply tank, substantially asspecified.

26. In a can coating machine, a spraying device comprising a liquidchamber casing having an overflow artition, an air chamber casing, aseries o upright liquid nozzles arranged in a curved row, a series ofdivergent nozzles; and a holder vfor said liquid.

nozzles removably secured to said liquid chamber casing, in combinationwith a liquid supply pipe and returnpipeqa liquid slip ly tank, a pumpfor returning the ove low liquid to the supply tank, .a compressed airsupply pipe, a valve therefor and means for automatically operating saidvalve, substantially .as specified;

27. In a can coating machine, a spraying device comprising .a liquidchamber-casing artition, an air chamber casing, a series pi) uprightliquid nozzles arranged in a curved row, a series of diver- Agentnozzles, and 'a holder `4fori said liquid nozzles removably vsecured tosaidvliquid chamber casing, in combination with'a liq' .uid supply pipeand return fpipe, a liquid ,A

supply tank, a pump for returning the overdevice comprising a liquidchamber casing V having an overflow partition, an air chamber casing, aseries of uprightv liquid nozzles arranged in a curved row, a series ofdivergent nozzles, and a holder for said liquid nozzles removablyvsecured-to said liquid chamber casing, in combination with a liquidsupply pipe and return-pipe, a liquid supply tank, a ump for returningthe overflow liquid to tiie suplply tank, a compressed air supply/pipe,a va ve therefor, means for automatically operating said valve, means vfor rotating the can being sprayed, and means for automaticallydelivering the cans one by one to said can rotating means, substantiallyas specified.

29. In a can coating machine, a spraying y device comprising a liquidchamber casing -having'an overflow partition, an air chamber casing, aseries of upright liquid nozzles a1.'- ranged in a curved row, a seriesof divergent nozzles, and a, holder for said li uid nozzles removablysecured to said liquid chamber casing, in combination with a liquidsupply pipe and return pipe, a liquid. supply tank, a pump forvreturning the overiiow iquid to the supply tank, a compressed air supplypipe, a ,valve therefor, means for automatically operating said valve,means for rotatmatically delivering the cans one b one to said canrotating means and means or withdrawing the Vcan from -the sprayingdevice, substantially as specified. 30; Ina can coating machine, a'spraying device comprising a liquid chamber having :in-overflowpartition, an air chamber casing, .a series of upright liquid nozzlesarranged in a curved row, a series of divergent nozzles, and a holderforsaid liquid nozzles removabl .secured to lsaid liquidchamber @usingin combination with a liquid supply pipe and return pipe, 'a liquidsupply tank, a pump for returning the overflow liquid to the suppl tank,a. compressed `air supply ipe, a va ve therefor, means for automatica lyo erating said valve, means for rotatin t e 'can being sprayed, meansfor automatically delivering. the cans :one by one to said can rotatingmeans, means' for withdrawing the can from the spraying device, adryingl devices, substantia l as specified.

l CHA LES S. BUCKLINL Witnesses: i 'HARRY KREBs, 1 l H.M.`LAWs.

I :ing the can being sprayed, means for auto-

